Ice-machine



P. HESSEL. IGE MACHINE. APPLICATION FILED JULY 3!, 19 20- Patented Nov.1 1921.

PARAFF/NED PAPA-7? /8 gwoantoz UNITED STATES I PHILIP HFSSEL, OFNORFOLK, VIRGINIA.

ICE-MACHINE.

Application filed July 31,

To all whom it may concern:

Be it known that I, Pmmr HnssEL, a citizen of the United States ofAmerica, and a resident of Norfolk, county of Norfolk, and State ofVirginia, have invented certain new anduseful Improvements inIce-Machines, ofwhich the following is a full and clear specification.

It is the common practice in the manufacture of raw water ice in cans tocontinuously inject centrally into the water in each can, during thefreezing operation a fine stream of air for the purpose of aerating thewater during the process of freezing, to thus prevent the formation of acore or pipe of white ice, which core would render the ice-blockunme'rchantable. This is now done by a small air-tube depending into thewater, this tube being connected to an air-pipe-line in any suitablemanner. After the block is frozen, the tube is withdrawn from the iceand is used again in another operation. The withdrawal of these tubesfrom the ice-block is a troublesome matter,

as is also the Work of disconnecting the tubes from the fittingconnected to the air supply-pipe; these metal tubes are furtherobjectionable for the reason that they quickly become unsanitary andthus requlre cleaning from time to time.

It is the object of my invention to en tirely do away with theabove-mentioned objections and troubles and provide 311 3411- injectingmeans that will be simple, inexpensive and sanitary, as more fullyhereinafter set forth. I

The drawing is a view in which is represented partly in side elevationand partly in vertical section a sufiicient number of parts of anice-making machine to illustrate myinvention.

In the drawing, a designates an ordinary ice-can, Z) a rubber hosesupported on the rim of the can by means of a clamp c and adapted to beconnected to a pipe-line for supplying air under pressure in the usual'manner. Clamped in the end of the hose overhanging the pan is adownwardlyturned metal elbow-tube d, this tube being removably securedin the end of the hose by means of a clamp e.

inserted in the downwardly-extended end of the elbow (Z is a tube 7' ofsmall diameter, which depends into the water in *1 the can for the usualdistance and so as to deliver continuously a fine stream of airSpecification of Letters Patent.

Patented Nov. 1, 1921.

1920. sum No. 400,407

sired degree of stiffness and also render it substantially water-proof.The coating of paraffin on the tube serves to seal the upper end of thetube in the elbow d by the simple act ofin'serting it in the elbow,while at the same time the tube may be readily slipped out of the elbowafter the freezing operation is completed. It is theidea of theinvention to use these tubes but once, they being so inexpensive that itis practlcable to do this, so that each tube will be thoroughly sanitaryand therefore will avoid contaminating the ice.

The flexibility of the tube permits the upper end to be readilydeflected'or bent so as to-disconnect it therefrom after the block iscompletely frozen, and this may be done whether or not the tube ispulled out of the ice-block. The tube may be permitted to remain in theblock, as it will not add apprec1ably to its weight and will not detractfrom the appearance of the block; but if desired the tube may bewithdrawn readily from the block, as the parafiin is inherentlyfrost-repellent and willthus prevent sticking to the ice.

It will be understood that any other material similar to paper may beemployed for forming the tube, and it will be understood also that I mayprovide the paraflin coating with an additional coating for stillfurther assuring frost-repellent action, to thereby render certain andeasy the withdrawal of the tube from the block. For instance, for thispurpose the tubes may be thinly coated with an edible oil. it isbelieved, however, that most manufacturers of ice would be entirelywilling that the tubes remain in the blocks, as they do not afiect themerchantable appearance of the ice, they being in fact so inconspicuousas to be practically unnoticeable, and, further, because thisparafiin-paper type of straw is known to the public to be thoroughlysanitary; therefore the presence of the tubes in the ice-blocks wouldnot meet with any objection on the part of the public. Obviously, the,embedded tubes would not interfere in the least with the splitting upof the block of ice into smaller pieces in the usual manner, as thetubes are so inherently weak that they will plane of. severance of 10impregnated with parafiin.

2. In an ice machine of the type set forth, adownwardly-turnedsupporting-tube, and a delivery-tube made ofparaffin-coated paper having its upper end fitted up into said dependingsupporting-tube, the coating on the tube serving to seal the end thereofin said delivery-tube.

In testimony whereof I hereunto afiix my signature.

PHILIP HESSEL.

